install & Config successful - 3 warnings - doesn't open

[LG Auction Service]

Step 4: Finished!

Congratulations on installing and

configuring osCommerce Online

Merchant as your online store solution!

We wish you all the best with the

success of your online store and

welcome you to join and participate in

our community.

- The osCommerce Team

 

Finished!

 

Warning: fopen(/var/www/catalog/admin/includes/configure.php)

[function.fopen]: failed to open stream: Permission denied in

/var/www/catalog/install/templates/pages/install_4.php on

line 152

 

Warning: fputs(): supplied argument is not a valid stream resource in

/var/www/catalog/install/templates/pages/install_4.php on

line 153

 

Warning: fclose(): supplied argument is not a valid stream resource

in /var/www/catalog/install/templates/pages/install_4.php

on line 154

 

The installation and configuration was successful!

 

Then I get a Catalog Button & Administration Tool Button. Both fail to work.

If I go to /catalog/admin/index.php I get:

 

Warning: require(includes/application_top.php) [function.require]: failed to open stream: Permission denied in /var/www/catalog/admin/index.php on line 13

 

Fatal error: require() [function.require]: Failed opening required 'includes/application_top.php' (include_path='.:/usr/share/php:/usr/share/pear') in /var/www/catalog/admin/index.php on line 13

 

What have I done wrong?